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Finding the Fourth Proportional to 425,673.81, 587,444.03 and 253,568.28

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Solution

The fourth proportional to 425,673.81, 587,444.03 and 253,568.28 is: 349,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,673.81 : 587,444.03 = 253,568.28 : x
  2. Step 2: Convert to fraction form
    425,673.81/587,444.03 = 253,568.28/x
  3. Step 3: Cross multiply
    425,673.81x = 587,444.03 × 253,568.28
  4. Step 4: Simplify right side
    425,673.81x = 148,957,172,917.29
  5. Step 5: Solve for x
    x = 148,957,172,917.29/425,673.81
  6. Step 6: Final answer
    x = 349,932.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.